How can I extract only large connected region with eliminating unwanted lines in the segmented binary image?

I have done segmentation operation on MRI image, in the last step i got required region with unwated lines/region. Out of that I need the

image with large connected part with unwanted line. I followed different morphological operations dilating, closing, erosion, bwareafilt methods

to achieve large connected tumour part but all are in vain.

Image is attached

-Thanks

Answer 1

[KALYAN ACHARJYA]

How can I extract only large connected region ?

largestBlob=bwareafilt(segmented_image, 1);

[Bhaskar R]

Thanks for the prompt responce. I already applied bwareafilt with diffent ranges but non of them fruitful, for the range 1 i got only one curve out of whole tumer, it should be closed curve large connected curve with no srrounding small lines